vSphere Storage - ESXi 5.1 - Documentation - VMware

3 From the list of available targets, select a target to configure and click Authentication.
4 Deselect Inherit settings from parent and specify authentication method.
n None
n Use unidirectional CHAP if required by target
n Use unidirectional CHAP unless prohibited by target
n Use unidirectional CHAP
n Use bidirectional CHAP. To configure bidirectional CHAP, you must select this option.
5 Specify the outgoing CHAP name.
Make sure that the name you specify matches the name configured on the storage side.
n To set the CHAP name to the iSCSI adapter name, select Use initiator name.
n To set the CHAP name to anything other than the iSCSI initiator name, deselect Use initiator name
and type a name in the Name text box.
6 Enter an outgoing CHAP secret to be used as part of authentication. Use the same secret that you enter
on the storage side.
7 If configuring bi-directional CHAP, specify incoming CHAP credentials.
Make sure to use different secrets for the outgoing and incoming CHAP.
8 Click OK.
9 Rescan the iSCSI adapter.
If you change the CHAP parameters, they are used for new iSCSI sessions. For existing sessions, new settings
are not used until you log out and login again.
Disable CHAP
You can disable CHAP if your storage system does not require it.
If you disable CHAP on a system that requires CHAP authentication, existing iSCSI sessions remain active
until you reboot your host, end the session through the command line, or the storage system forces a logout.
After the session ends, you can no longer connect to targets that require CHAP.
Required privilege: Host.Configuration.Storage Partition Configuration
Procedure
1 Open the CHAP Credentials dialog box.
2 For software and dependent hardware iSCSI adapters, to disable just the mutual CHAP and leave the oneway
CHAP, select Do not use CHAP in the Mutual CHAP area.
3 To disable one-way CHAP, select Do not use CHAP in the CHAP area.
The mutual CHAP, if set up, automatically turns to Do not use CHAP when you disable the one-way
CHAP.
4 Click OK.
Chapter 11 Configuring iSCSI Adapters and Storage
VMware, Inc. 107